Simplify $$\(2.1 \times 10^{p}+2.1 \times 10^{p-1}\)$$. Give your answer in standard form. .............................................
Exam No：0580_s21_qp_23 Year：2021 Question No：20
Answer:
\(2.31 \times 10^{p}\)
Knowledge points:
E1.7 Understand indices and use rules of indices. Use standard form.
Solution:
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